Global Patent Index - EP 3385692 A1

EP 3385692 A1 20181010 - HERMETICITY TESTING OF AN OPTICAL ASSEMBLY

Title (en)

HERMETICITY TESTING OF AN OPTICAL ASSEMBLY

Title (de)

LUFTDICHTHEITSPRÜFUNG EINER OPTISCHEN ANORDNUNG

Title (fr)

TEST D'ÉTANCHÉITÉ D'UN ENSEMBLE OPTIQUE

Publication

EP 3385692 A1 20181010 (EN)

Application

EP 17164570 A 20170403

Priority

EP 17164570 A 20170403

Abstract (en)

A method for testing an optical assembly (1) which has an optical microstructure (3) integrated with a substrate (2). The optical microstructure (3) is positioned to form an external optical interaction area (4) on a part of a surface (5) of the substrate (2). A cover cap (6) seals at least a part of the surface (5) of the substrate (2) adjacent to the optical microstructure (3) to obtain a sealed cavity (9). An optical feedthrough (10) is integrated in the substrate (2) to form an external communication path from within the sealed cavity (9). The optical feedthrough (10) allows communication of a physical parameter value which is measured inside the sealed cavity (9) to outside the sealed cavity (9). The physical parameter value is associated with a measure of hermeticity of the sealed cavity (9).

IPC 8 full level

G01M 3/04 (2006.01); G01M 3/18 (2006.01); G01M 3/38 (2006.01); G02B 6/42 (2006.01)

CPC (source: EP US)

G01M 3/04 (2013.01 - US); G01M 3/047 (2013.01 - EP); G01M 3/186 (2013.01 - EP); G01M 3/38 (2013.01 - EP); G02B 6/12004 (2013.01 - EP); G02B 6/4248 (2013.01 - US); G02B 6/4248 (2013.01 - EP); G02B 2006/12138 (2013.01 - EP)

Citation (applicant)

US 8528397 B2 20130910 - STAMPER ANTHONY K [US]

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3385692 A1 20181010; CN 110799822 A 20200214; CN 110799822 B 20211207; EP 3607291 A1 20200212; EP 3607291 B1 20200722; US 11262267 B2 20220301; US 2021102860 A1 20210408; WO 2018185029 A1 20181011

DOCDB simple family (application)

EP 17164570 A 20170403; CN 201880023484 A 20180330; EP 18713280 A 20180330; EP 2018058306 W 20180330; US 201816500099 A 20180330